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From: "markp" <markwork66@yahoo.com>
Newsgroups: comp.lang.ada
Subject: Re: Sending Variable Length Messages with GNAT.Sockets
Date: 9 May 2005 07:51:23 -0700
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Date: 2005-05-09T07:51:23-07:00
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Thanks John.

I still have a fundamental problem. I am working on legacy code in
which data is defined in records (or arrays of records) which are sent
in variable lengths. We use address, byte count to send the exact
number of bytes. Using Streams, it seems they type has to be of
Stream_element_Array. The only way I can see to send/receive these
"variable" messages is to first read our message header which contains
the number of bytes in the message. Then, create a Stream_Element_Array
of the exact size for the next read. Then, do an unchecked conversion
or a copy bytes routine to get the data into my data type for
processing. Does this sound correct?

Lastly, using the 'Read function on streams, am I guaranteed to block
until I receive all bytes?

Thanks,

Mark